V2EX ext4

Ext4

释义 Definition

ext4 是 Linux 常用的一种文件系统名称,全称通常理解为 “第四代扩展文件系统(fourth extended filesystem)”。它在 ext3 的基础上改进了性能、可靠性与对大容量存储的支持。(在不同语境下也可能被写作 EXT4,指同一事物。)

发音 Pronunciation (IPA)

/i ks ti fr/

例句 Examples

I formatted the USB drive as ext4.
我把这个 U 盘格式化成了 ext4。

Because ext4 uses journaling and other improvements, it’s often chosen for Linux servers that need stable performance and quick recovery after crashes.
由于 ext4 使用日志等改进机制,它常被用于需要稳定性能、并在宕机后能快速恢复的 Linux 服务器。

词源 Etymology

ext 来自 extended(扩展的),指早期 Linux “扩展文件系统”系列;4 表示第四代实现。ext4 继承了 ext2/ext3 的设计思路,并加入了更适合现代硬盘与大容量分区的特性。

相关词 Related Words

文学与作品 Literary Works

ext4 更常见于技术写作而非文学作品,以下技术类书籍/资料中常可见该词:

  • Linux Kernel Development(Robert Love)
  • Understanding the Linux Kernel(Daniel P. Bovet, Marco Cesati)
  • Linux System Administration(常见教材与参考书版本中涉及文件系统章节)
  • Linux 内核与文件系统相关文档(如内核文档与发行版手册中关于 ext4 的说明)
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